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Title: Single-Nucleus Polycrystallization in Thin Film Epitaxial Growth

Abstract

We have observed, by use of low-energy electron microscopy, the first direct evidence of self-driven polycrystallization evolved from a single nucleus in the case of epitaxial pentacene growth on the Si(111)-H terminated surface. In this Letter we demonstrate that such polycrystallization can develop in anisotropic systems (in terms of crystal structure and/or the intermolecular interactions) when kinetic growth conditions force the alignment of the intrinsic preferential growth directions along the density gradient of diffusing molecules. This finding gives new insight into the crystallization of complex molecular systems, elucidating the importance of nanoscale control of the growth conditions.

Authors:
; ; ; ; ;  [1];  [1];  [2];  [3]
  1. Institute for Materials Research, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai 980-8577 (Japan)
  2. (Japan)
  3. IBM Research Division, T. J. Watson Research Center, 1101 Kitachawan Road, P.O. Box 218, Yorktown Heights, New York 10598 (United States)
Publication Date:
OSTI Identifier:
20861648
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review Letters; Journal Volume: 98; Journal Issue: 4; Other Information: DOI: 10.1103/PhysRevLett.98.046104; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; ANISOTROPY; CRYSTAL GROWTH; CRYSTAL STRUCTURE; CRYSTALLIZATION; ELECTRON MICROSCOPY; EPITAXY; NANOSTRUCTURES; NUCLEI; PENTACENE; POLYCRYSTALS; THIN FILMS

Citation Formats

Sadowski, J. T., Nishikata, S., Al-Mahboob, A., Fujikawa, Y., Nakajima, K., Sakurai, T., Sazaki, G., Center for Interdisciplinary Research, Tohoku University, Aramaki, Aoba-ku, Sendai 980-8578, and Tromp, R. M. Single-Nucleus Polycrystallization in Thin Film Epitaxial Growth. United States: N. p., 2007. Web. doi:10.1103/PHYSREVLETT.98.046104.
Sadowski, J. T., Nishikata, S., Al-Mahboob, A., Fujikawa, Y., Nakajima, K., Sakurai, T., Sazaki, G., Center for Interdisciplinary Research, Tohoku University, Aramaki, Aoba-ku, Sendai 980-8578, & Tromp, R. M. Single-Nucleus Polycrystallization in Thin Film Epitaxial Growth. United States. doi:10.1103/PHYSREVLETT.98.046104.
Sadowski, J. T., Nishikata, S., Al-Mahboob, A., Fujikawa, Y., Nakajima, K., Sakurai, T., Sazaki, G., Center for Interdisciplinary Research, Tohoku University, Aramaki, Aoba-ku, Sendai 980-8578, and Tromp, R. M. Fri . "Single-Nucleus Polycrystallization in Thin Film Epitaxial Growth". United States. doi:10.1103/PHYSREVLETT.98.046104.
@article{osti_20861648,
title = {Single-Nucleus Polycrystallization in Thin Film Epitaxial Growth},
author = {Sadowski, J. T. and Nishikata, S. and Al-Mahboob, A. and Fujikawa, Y. and Nakajima, K. and Sakurai, T. and Sazaki, G. and Center for Interdisciplinary Research, Tohoku University, Aramaki, Aoba-ku, Sendai 980-8578 and Tromp, R. M.},
abstractNote = {We have observed, by use of low-energy electron microscopy, the first direct evidence of self-driven polycrystallization evolved from a single nucleus in the case of epitaxial pentacene growth on the Si(111)-H terminated surface. In this Letter we demonstrate that such polycrystallization can develop in anisotropic systems (in terms of crystal structure and/or the intermolecular interactions) when kinetic growth conditions force the alignment of the intrinsic preferential growth directions along the density gradient of diffusing molecules. This finding gives new insight into the crystallization of complex molecular systems, elucidating the importance of nanoscale control of the growth conditions.},
doi = {10.1103/PHYSREVLETT.98.046104},
journal = {Physical Review Letters},
number = 4,
volume = 98,
place = {United States},
year = {Fri Jan 26 00:00:00 EST 2007},
month = {Fri Jan 26 00:00:00 EST 2007}
}